Pet Care Needed

I have three Sphynx cats and one is diabetic and must have shots at 4 a.m. and 4 p.m. So must be comfortable with giving shots and checking blood sugar if needed. I have a litter robot so no scooping the boxes, must stay overnight at my home, these cats are Velcro cats and love to snuggle and cuddle. They have separation anxiety if left alone for more than a day.